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Haynes International, Inc. is pleased to announce the development of HAYNES® NS-163® alloy, an alloy that brings a new level of high-temperature alloy performance at temperatures up to 2200°F (1204°C). HAYNES NS-163 alloy is a wrought cobalt-based alloy (Co–28Cr–21Fe–9Ni–1.25Ti–1Nb) for use in sheet and wire forms. Not only is this alloy fully fabricable and weldable, it achieves a level of stress-rupture strength that approaches the capabilities of the oxide-dispersion strengthened (ODS) alloys. This capability is developed through a unique new heat treatment under nitrogen which imparts a through-thickness dispersion-strengthening phase in the final part at thicknesses up to 0.100” (2.5 mm). This fabricable alloy achieves strengths that are unparalleled in any other wrought alloy product available today.

NS-163 alloy -- Production sheet-0.08in thick Condition-NDS

Alloy

Temperature

Approximate Initial Stress to Produce Rupture in:

100 h

1000 h

-

°C

°F

Mpa

ksi

MPa

ksi

188

982

1800

37

5.4

17

2.4

230®

982

1800

34

4.9

18

2.6

NS-163®

982

1800

67

9.7

45

6.5


HAYNES NS-163 alloy will become available for commercial sale upon completion of key process developments.
A range of sheet thicknesses and wire diameters is now available for trial evaluations.
Please contact Ron Block at (317) 413-4876 or rblock@haynesintl.com for more information.

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